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Error code reference
Samsung Freezer Error Code 4
Freezer defrost sensor (F-DEF-SENSOR) open or short circuit.
SourceSamsung RZ Series Freezer - Service Manual (RZ60/RZ80/RZ90)p. 33-34
Diagnostic procedure
The full 4 procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check voltage between MAIN PCB CN30 #3 and #8, should be within 4.5V~1.0V.
SourceSamsung RZ Series Freezer - Service Manual (RZ60/RZ80/RZ90)p. 33-34
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Where this code is documented
2 manuals in the MyPros+ library document this code for Samsung freezer.
Models covered by the manuals that document this code
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